Just as a word of warning that it is not recommended to give mice to you Pacs until they have reached 2.5" SVL(Snout to Vent Length) due to the risk of impaction and prolapsed intestine risk. The fuzzy with your Cranwelli is pushing it by the loom of its size. It is safer to start with pinkies and ease into a fuzzy when they are older plus the hair on the fuzzy makes it take longer to digest and more of a risk for impaction.